Information
- Publication Type: Technical Report
- Workgroup(s)/Project(s): not specified
- Date: June 1998
- Number: TR-186-2-98-33
- Keywords: Sampling, BRDF, Global Illumination
Abstract
A new form factor analogy, that has been derived
from results of integral geometry, is introduced. The new analogy is
shown to be useful for stochastic evaluation of the local form of the
rendering equation used in various Monte Carlo methods for calculating
global illumination. It makes it possible to improve importance
sampling in these methods, thereby speeding up convergence. A new
class of bidirectional reflection distribution functions that directly
benefits from the analogy and permits exact evaluation and
calculation of correctly distributed vectors for Monte Carlo
integration is presented.
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BibTeX
@techreport{Tobler-1998-FFA,
title = "A new Form Factor Analogy and its Application to Stochastic
Global Illumination Algorithms",
author = "Robert F. Tobler and L\'{a}szl\'{o} Neumann and Mateu Sbert
and Werner Purgathofer",
year = "1998",
abstract = "A new form factor analogy, that has been derived from
results of integral geometry, is introduced. The new
analogy is shown to be useful for stochastic evaluation of
the local form of the rendering equation used in various
Monte Carlo methods for calculating global illumination. It
makes it possible to improve importance sampling in these
methods, thereby speeding up convergence. A new class of
bidirectional reflection distribution functions that
directly benefits from the analogy and permits exact
evaluation and calculation of correctly distributed vectors
for Monte Carlo integration is presented.",
month = jun,
number = "TR-186-2-98-33",
address = "Favoritenstrasse 9-11/E193-02, A-1040 Vienna, Austria",
institution = "Institute of Computer Graphics and Algorithms, Vienna
University of Technology ",
note = "human contact: technical-report@cg.tuwien.ac.at",
keywords = "Sampling, BRDF, Global Illumination",
URL = "https://www.cg.tuwien.ac.at/research/publications/1998/Tobler-1998-FFA/",
}
paper